Wrench.



J. csAINYI.

WRENCH. I APPLIGATION FILED AUG. 12 1914.

31-1001 1 llm (I; C6651: I 1

Site 1 AM Patented Mar. 33, 1915.

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11': NOPPIS PETERS ca PHOTDLITHO, WASHINGTON D c.

innrrnn sanirns JHAN CSANYI, OF PERRYOPOLIS, PENNSYLVANIA.

WRENCH.

Application filed August 12, 191%. Serial No. 856,357

l I To all whom it may concern:

' Wrenches, of which the following is a speciprovide a wrench fication.

This invention relates to certain new and useful improvements inwrenches.

According to my invention, I provide a wrench of that type generallyknown as monkey wrench, to embody in a single device a wrench comprisingfixed and pivoted jaws.

An object of the present invention is to with double jaw faces at oneend thereof upon opposite sides of the same, one of which pairs of jawsis of the rigid type, while the other pair of said jaws embody pivotedmembers preferably having racked faces for better gripping the object,and with means operating in connection with the pivoted jaws to causethesame to be released from the work when bound or gripped thereto.

With the above general objects in view, and others that will appear asthe invention is better understood, the same consists in the novelconstruction, combination and arrangement of parts to be hereinaftermore fully described and then claimed, and in describing the inventionmore fully in detail reference will be had, to the accompanying drawingby like characters designating corresponding parts throughout theseveral views, and in which drawmg,

Figure 1 is a side elevational view of the wrench, shown partly insection. Fig. is an end view. Fig. 3 is a cross-sectlonal view throughthe pivoted outer jaw, taken on lines III-III of Fig. 1, and Fig. 4t 1sa detail perspective view of the pivoted outer jaw detached.

Briefly described, the invention consists of a wrench generally known asa monkey wrench and embodies in a single structure a pair of jaws oneach side of the shank, one of which pairs of jaws is rigld, while theother pair is pivoted, and is provided on the face with rack teeth,better to enable the pivoted jaws to grip a circular body such as a pipeor rod. Means are provided to move the jaws the desired distances apart,a further means are provided in connection wlth the pivoted outer jaw sothat the said aw the nature of may be released from the work when boundor-gripped thereto.

Referring more in detail to the accompanying drawing, the referencenumeral 10 designates the handle of the wrench which Specification ofLetters Patent. Pgtgntged Mar, 23, 1915,

is of hollow construction and preferably open at its inner end so thatthe shank carried by the outer jaw and moving therethrough Wlll have alonger amount of play and be permitted to grip larger and smallerobjects. The tubular handle 10 is enlarged intermediate its ends as at11, providing a recess 12 for the reception of an operating threaded nut13.

A pair of inner jaws are formed on the outer end of the handle 10 byincreasing in thickness and diameter the said handle to provide a rigidinner jaw 14:, and a sup port 15'for the pivoted inner jaw 16. Thesupport 15 is bifurcated at its outer end and receives a cross pin 17passed through the shank 18 of the said pivoted inner jaw 16,

while the face of the said jaw is provided with a series of rack teeth19 for the purpose of gripping a circular or round body.

The outer jaws are carried by the shank 20, preferably rectangular incross section and which shank is received in the hollow handle 10, itbeing noted that the central passage in the said handle is of the sameshape as the said shank to prevent the shank from turning therein.Spiral threads 21 are provided on the inner end of the shank 20, and areengaged by the operating nut 13 so that the said shank may be moved inan inward and outward direction. A pair of outer jaws cooperating withthe inner jaws 1 1 and 16 are carried on the outer end of the nectionwith the pivot point 2 1, and prevent undue injury and harm to the same.A finger or trigger 28 extends from the shank 25 and is engaged on itsinner face bya coil spring 29 seated in a recess 30 formed in the outerend on a shank 20, which spring normally tends to hold the pivoted outerjaw 26 in an inward direction, while the operating face on the outer jawis provided with teeth 81.

The inner and outer jaws are moved to the desired position by theoperating nut 13, engaging the threaded portion 21 of the shank 20. Whenthe toothed faces 19 and 21 of the pivoted jaws 16 and 26 are grippedupon a round body, and it being desired to release the same from thebody, it is only necessary to strike or forcibly engage the trigger 28against the tension of the spring 29 and move the said trigger in aninward direction and the jaw 26 in a slight outer direction to unbindthe movable jaws from the work and permit the operating nut 13 to beshifted.

While the forms of the'invention herein shown and described are what arebelieved to be preferable embodiments thereof, it is nevertheless to beunderstood that minor changes may be made in the form, proportion anddetails of construction without departing from the splrit and scope ofthe invention as clalmed.

flames oi this patent may be obtained for five cents each, by addressingthe What I claim as new is 1- In a wrench, a hollow handle portion,afiXed and pivoted jaw carried by the outer end of the hollow handle, athreaded shank mounted in said hollow handle, means for moving saidshank in said handle, a fixed jaw carried by the outer end of said shankoperating in connection with the fixed inner jaw, a pair of lugs carriedby the outer end of said shank, a pivoted outer jaw positioned in saidlugs and operating in connection with the pivoted inner jaw, the saidshank having recess in its outer end, a coil spring received in saidrecess, and a trigger carried by the pivoted outer jaw adapted tooverlie the spring and be engaged by the same to cause the pivoted jawto move in an outward direction.

In testimony whereof I affix my signature in presence of two witnesses.

JHAN OSANYI.

Witnesses FRANK PrKLo, ALEX BAROVSZKY.

Gommiszsioner of Patents,

Washington, D. G."

